| Hardness Conversion Table
|
|
Vickers
Hardness |
Brinell Hardness
10
mm tungsten carbide ball |
Rockwell
Hardness
|
|
- |
Load 3000 kg |
B scale
100 kg
load |
C scale
150 kg
load |
D scale
100 kg
load |
|
940 |
- |
- |
68.0 |
76.9 |
|
920 |
- |
- |
67.5 |
76.5 |
|
900 |
- |
- |
67.0 |
76.1 |
|
880 |
(767) |
- |
66.4 |
75.7 |
|
860 |
(757) |
- |
65.9 |
75.3 |
|
840 |
(745) |
- |
65.3 |
74.8 |
|
820 |
(733) |
- |
64.7 |
74.3 |
|
800 |
(722) |
- |
64.0 |
73.8 |
|
780 |
(710) |
- |
63.3 |
73.3 |
|
760 |
(698) |
- |
62.5 |
72.6 |
|
740 |
(684) |
- |
61.8 |
72.1 |
|
720 |
(670) |
- |
61.0 |
71.5 |
|
700 |
(656) |
- |
60.1 |
70.8 |
|
690 |
(647) |
- |
59.7 |
70.5 |
|
680 |
(638) |
- |
59.2 |
70.1 |
|
670 |
(630) |
- |
58.8 |
69.8 |
|
660 |
620 |
- |
58.3 |
69.4 |
|
650 |
611 |
- |
57.8 |
69.0 |
|
640 |
601 |
- |
57.3 |
68.7 |
|
630 |
591 |
- |
56.8 |
68.3 |
|
620 |
582 |
- |
56.3 |
67.9 |
|
610 |
573 |
- |
55.7 |
67.5 |
|
600 |
564 |
- |
55.2 |
67.0 |
|
590 |
554 |
- |
54.7 |
66.7 |
|
580 |
545 |
- |
54.1 |
66.2 |
|
570 |
535 |
- |
53.6 |
65.8 |
|
560 |
525 |
- |
53.0 |
65.4 |
|
550 |
517 |
- |
52.3 |
64.8 |
|
540 |
507 |
- |
51.7 |
64.4 |
|
530 |
497 |
- |
51.1 |
63.9 |
|
520 |
488 |
- |
50.5 |
63.5 |
|
510 |
479 |
- |
49.8 |
62.9 |
|
500 |
471 |
- |
49.1 |
62.2 |
|
490 |
460 |
- |
48.4 |
61.6 |
|
480 |
452 |
- |
47.7 |
61.3 |
|
470 |
442 |
- |
46.9 |
60.7 |
|
460 |
433 |
- |
46.1 |
60.1 |
|
450 |
425 |
- |
45.3 |
59.4 |
|
440 |
415 |
- |
44.5 |
58.8 |
|
430 |
405 |
- |
43.6 |
58.2 |
|
420 |
397 |
- |
42.7 |
57.5 |
|
410 |
388 |
- |
41.8 |
56.8 |
|
400 |
379 |
- |
40.8 |
56.0 |
|
390 |
369 |
- |
39.8 |
55.2 |
|
380 |
360 |
(110.0) |
38.8 |
54.4 |
|
370 |
350 |
- |
37.7 |
53.6 |
|
360 |
341 |
(109.0) |
36.6 |
52.8 |
|
350 |
331 |
- |
35.5 |
51.9 |
|
340 |
322 |
(108.0) |
34.4 |
51.1 |
|
330 |
313 |
- |
33.3 |
50.2 |
|
320 |
303 |
(107.0) |
32.2 |
49.4 |
|
310 |
294 |
- |
31.0 |
48.4 |
|
300 |
284 |
(105.0) |
29.8 |
47.5 |
|
295 |
280 |
- |
29.2 |
47.1 |
|
290 |
275 |
(104.5) |
28.5 |
46.5 |
|
285 |
270 |
- |
27.8 |
46.0 |
|
280 |
265 |
(103.5) |
27.1 |
45.3 |
|
275 |
261 |
- |
26.4 |
44.9 |
|
270 |
256 |
(102.0) |
25.6 |
44.3 |
|
265 |
252 |
- |
24.8 |
43.7 |
|
260 |
247 |
(101.0) |
24.0 |
43.1 |
|
255 |
243 |
- |
23.1 |
42.2 |
|
250 |
238 |
99.5 |
22.2 |
41.7 |
|
245 |
233 |
- |
21.3 |
41.1 |
|
240 |
228 |
98.1 |
20.3 |
40.3 |
|
230 |
219 |
96.7 |
(18.0) |
- |
|
220 |
209 |
95.0 |
(15.7) |
- |
|
210 |
200 |
93.4 |
(13.4) |
- |
|
200 |
190 |
91.5 |
(11.0) |
- |
|
190 |
181 |
89.5 |
(8.5) |
- |
|
180 |
171 |
87.1 |
(6.0) |
- |
|
170 |
162 |
85.0 |
(3.0) |
- |
|
160 |
152 |
81.7 |
(0.0) |
- |
|
150 |
143 |
78.7 |
- |
- |
|
140 |
133 |
75.0 |
- |
- |
|
130 |
124 |
71.2 |
- |
- |
|
120 |
114 |
66.7 |
- |
- |
|
110 |
105 |
62.3 |
- |
- |
|
100 |
95 |
56.2 |
- |
- |
|
95 |
90 |
52.0 |
- |
- |
|
90 |
86 |
48.0 |
- |
- |
|
85 |
81 |
41.0 |
- |
- |
|
|
|
© 2013 Struers A/S. All rights reserved.
|
